| 释义 |
positivity rate
noun[ C ]
uk /ˌpɒz.əˈtɪv.ə.ti ˌreɪt/ us /ˌpɑː.zəˈtɪv.ə.t̬i ˌreɪt/(US alsopercent positive)
the number of all tests for an illness that are positive (= show that someone has the illness), expressed as a number out of a hundred: 阳性百分比（即某一疾病的所有测试结果呈阳性的数量，以百分比表示）
These numbers probably underestimate the true positivity rate.这些数字可能低估了真正的阳性百分比。
Quick testing has been successful in identifying people who were HIV positive, with as much as a 3% positivity rate.快速检测在识别HIV阳性者方面是成功的，阳性率高达3%。
Chan et al. reported a high positivity rate of 52.1 % in patients investigated during the SARS epidemic.
Seroprevalence studies have shown a positivity rate of the order of 30% in North America and Europe.
Other investigators either failed to detect viral DNA, or reported low positivity rates.
SMART Vocabulary: related words and phrases
Numerical relationships
absolute difference
absolute error
absolute maximum
absolute minimum
arithmetic progression
differential
Fibonacci sequence
geometric progression
golden mean
golden ratio
harmonic progression
iteration
proportion
proportional
proportionally
proportionately
prorate
prorated
quantile
subset
You can also find related words, phrases, and synonyms in the topics:
Passing on illness & causing disease
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